Microbiology WCC Keith Test With
Verified Questions and Answers
2025/2026
Save
ocular lens -correct question10x eyepiece
scanning (low) power objective -correct questionx10
scanning high power objective -correct questionx40
scanning oil -correct questionx100
total magnification -correct questionocular x objective
refraction -correct questionmeasure of dispersal of visual
light as it passes through different material/ different
density
, minimize refraction -correct questionusing oil, same index
as glass
working distance -correct questionthe distance between
the specimen and the objective lens
par focal -correct questionwhen one lens is in focus, the
other lenses will also have the same focal length
and can be rotated into position without further major
adjustment.
morphology -correct questionshape of bacteria
coccus -correct questionround
Coccus example -correct questionStreptococcus
straphylococcus -correct questionstaph infection; MRSA;
anti-biotic resistant; cluster
Streptococcus -correct questionstrep throat; anti-biotic
resistant; diploid arrangement
Bacillus -correct questionRod shaped bacteria inside gut;
variation in arrangement
Escherichia coli -correct questiongram negative
Verified Questions and Answers
2025/2026
Save
ocular lens -correct question10x eyepiece
scanning (low) power objective -correct questionx10
scanning high power objective -correct questionx40
scanning oil -correct questionx100
total magnification -correct questionocular x objective
refraction -correct questionmeasure of dispersal of visual
light as it passes through different material/ different
density
, minimize refraction -correct questionusing oil, same index
as glass
working distance -correct questionthe distance between
the specimen and the objective lens
par focal -correct questionwhen one lens is in focus, the
other lenses will also have the same focal length
and can be rotated into position without further major
adjustment.
morphology -correct questionshape of bacteria
coccus -correct questionround
Coccus example -correct questionStreptococcus
straphylococcus -correct questionstaph infection; MRSA;
anti-biotic resistant; cluster
Streptococcus -correct questionstrep throat; anti-biotic
resistant; diploid arrangement
Bacillus -correct questionRod shaped bacteria inside gut;
variation in arrangement
Escherichia coli -correct questiongram negative
